CDMT, for Coherent Dispersion Measure Trials, is a software program to perform coherent dedispersion on complex voltage data from the LOFAR telescope and to coherently dedisperse to many different dispersion measure trials. It reads HDF5 input data and generates SIGPROC compatible filterbank files.

The software uses NVIDIA GPUs to accelerate the computations and hence requires compilation with nvcc against the cufft and hdf5 libraries.

Presently the code is only capable of reading LOFAR HDF5 complex voltage data. If you want to use cdmt with a different input data type, let me know.

The code has been modified to ingest MWA raw voltages in VDIF format, as output by VCSBeam. Some parts of the code (input checking and the unpack/padding kernals) have been updated using code from David McKenna's fork.